Grimbergen Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Grimbergen, Flemish Brabant, Belgium. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Let's now guide you through the details for a complete overview.
Generally, Grimbergen experiences moderate precipitation patterns, averaging 810 mm (32 in) yearly.
Monthly Rainfall & Rainy Days
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Year-round, Grimbergen has a balanced climate with minimal variation in precipitation. The difference between the wettest month, August, with 79 mm (3.1 in), and the driest month, April, with 54 mm (2.1 in), is minimal.
August, the wettest month, has a maximum daytime temperature of 24°C (75°F). The city receives 198 hours of sunshine in this period. During the driest month April you can expect a temperature of 16°C (61°F). For more detailed insights into the city's temperatures, visit our Grimbergen Temperature page.
Annual Rainfall in Belgium: City Comparison
The map below shows the annual precipitation across Belgium. You can also select the different months in case you are interested in a specific month.
Grimbergen vs World: Rainfall Compared
Grimbergen's average annual precipitation is 810 mm (32 in). Let's compare this to some popular worldwide tourist destinations:
Chicago, USA, sees an annual precipitation of 1062 mm (42 in), with rain and snow contributing to its humid climate.
Beijing, China, receives 560 mm (22 in) of annual precipitation, concentrated in the summer months.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
Kuala Lumpur, Malaysia, receives 2529 mm (100 in) of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.
Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.
Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.
Tropical Rainforests: In tropical regions, rainfall is generally abundant year-round. Areas near the equator, like the Amazon rainforest, can receive up to 3000 mm (118 in) of rain annually.
Desert Regions: Deserts such as the Sahara and Arabian deserts typically see less than 250 mm (9.8 in) of rainfall annually. Rainfall tends to be infrequent, but when it does occur, it is often intense.
Temperate Zones: In temperate regions, precipitation tends to be more evenly distributed, though areas closer to the ocean may see more rain in the winter months, and areas further inland experience drier summers.
Polar Regions: Precipitation in polar regions, like Antarctica, is extremely low, often falling as snow. Average annual precipitation in Antarctica is less than 200 mm (7.9 in), with some areas receiving as little as 50 mm (2 in) annually.
- The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
- Approximately 70% of lightning bolts strike land rather than oceans.
- A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.
For more detailed information about Grimbergen's weather, including sunshine hours, humidity levels, and temperature data, visit our Grimbergen Climate page.
Grimbergen Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Grimbergen - and find the best time to visit.
Grimbergen 3-Day Forecast
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Grimbergen climate overview or explore weather in Belgium.
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